在 2021/12/2 上午11:26, Andrew Morton 写道:
Such as：Delete the WARN_ON() and return NULL directly for oversized parameter in kvmalloc() calls. Also add unlikely(). Fixes: 7661809d493b ("mm: don't allow oversized kvmalloc() calls") Signed-off-by: Bixuan Cui <cuibixuan@xxxxxxxxxxxxxxxxx> --- There are a lot of oversize warnings and patches about kvmalloc() calls recently. Maybe these warnings are not very necessary.Or maybe they are. Please let's take a look at these warnings, one at a time. If a large number of them are bogus then sure, let's disable the runtime test. But perhaps it's the case that calling code has genuine issues and should be repaired.
https://syzkaller.appspot.com/bug?id=24452f89446639c901ac07379ccc702808471e8e
https://syzkaller.appspot.com/bug?id=f7c5a86e747f9b7ce333e7295875cd4ede2c7a0d
https://syzkaller.appspot.com/bug?id=8f306f3db150657a1f6bbe1927467084531602c7
https://syzkaller.appspot.com/bug?id=6f30adb592d476978777a1125d1f680edfc23e00
https://syzkaller.appspot.com/bug?id=4c9ab8c7d0f8b551950db06559dc9cde4119ac83
